Incremental rotary viscometer

Details Incremental rotary viscometer Incremental rotary viscometer

1980-03-13

1981-11-10

Ruehl, Charles A.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Viscosity

G01N 1114

Patent

active

042991196

ABSTRACT:
A rotary viscometer of the type which measures the viscous torque to which a rotating spindle is subjected, by measuring the current drawn by the electric motor driving the spindle. True viscosity, i.e. the slope of the torque-spindle rotation speed curve, is approximated by varying the spindle speed stepwise in sets of speed measurements having a fixed speed difference, and obtaining the difference between the corresponding torque values for each set. By repeating this process throughout the desired speed range, an approximate derivative of the torque-speed curve is obtained, corresponding to an approximation of the true viscosity of the fluid being characterized.

REFERENCES:
patent: 2365339 (1944-12-01), Green
patent: 2657572 (1953-11-01), Fann
patent: 2736195 (1956-02-01), Christianson
patent: 3079788 (1963-03-01), Trotin
patent: 3875791 (1975-04-01), Fitzgerald et al.
patent: 3901070 (1975-08-01), Duffy

Affiliated with

Also associated with

Rating

Incremental rotary viscometer does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Incremental rotary viscometer, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Incremental rotary viscometer will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2357578